Trimming device



Aug. 17, 1937. E. G. NIELsl-:N

4 TRIMMING DEVICE Filed Feb. 25, 1935 lll/Il HIS ATTORNEYS Patented Aug.17, 1937 UNITED STATES PATENT- GFFICE TRIMBIING DEVICE Elmer G. Nielsen,Chicago, Ill.

Application February 25, 1935, Serial No. 8,142

3 Claims.

My invention relates to trimming devices, and has among its objects andadvantages the provision of an improved shingle cutter.

An object of the invention is to provide a novel table designed forconnection with a con.- ventional shingle cutter and in which means isembodied whereby the shingle may be easily and eiectively cut for sizeand angularity.

A further object is to provide a novel mounting for the table, wherebythe necessity for reconstructing any part of the original shingle cutteris eliminated.

In the accompanying drawing:

Fig. 1 is a top plan view of a shingle cutter partly in sectionillustrating my invention applied thereto;

Fig. 2 is a side yelevation partly in section;

Fig. 3 is a sectional view along the line 3-3 of Fig. 1;

Fig. 4 is a sectional View along the line 4--4 of Fig. 3; and

Fig. 5 is a sectional view along the line 5-5 of Fig. 1. Y Y

In the embodiment selected to illustrate my invention, I make use of aconventional shingle cutter I0 comprising a beam I2 cast integrally withsupporting legs I4. This beam includes a bottom reenforcing ange I6 andan upper enlarged part I8 carrying a cutting blade 20. A movable bladeholder 22 is pivotally connected at 24 with an enlarged part 25 of thebeam I2. The movable blade holder 22 includes an enlarged part 28 (seeFig. 5) which supports a comp-anion cutting blade lill lying in the sameplane as the blade 20.

The opposite end of the blade holder 22 has an integral ear 32 pivotallyconnected at 34 with an operating handle 3S. The latter is pivotallyconnected at 38 with the beam I2 at 48 through the medium of a link 42.Thus, raising and lowering of the free end of the handle 36 moves thecutting blade 38 toward and away from the blade 20. A lug 44 carried bythe blade holder 22 is positioned in the path of a similar lug 46carried by the handle 36. Engagement between the two lugs when thehandle is positioned according to Fig. 2 prevents the load of the bladeholder 22 and its associated structure from resting directly upon theblade 28. However, the relation is such that building material in thenature of asbestos shingles and equivalent covering material iseffectively severed by the blades 20 and 38. All the structure abovedescribed is old in the art.

My invention includes a metallic table 48 having'its ends connected withthe horizontal reaches 50 and 52 of two brackets 54 and 56,respectively, The connection between the table 48 and the reaches 5! and52 may comprise rivets 58 having countersunk heads 88. Referring to Fig.I, the beam I2 is provided with two laterally extending parts 62 eachhaving a small circular face 54 comprising supporting means for theshingle to be cut in the original cutter. I provide two openings 66 inthe table 48 for accommodating the faces 64 which terminate flush withthe upper face of the table.

Each of the brackets 54 and 56 is U-shaped in conguration (see Figs'. 3and 5) so that the brackets substantially encircle the beam I2. 15 Eachbracket including the horizontal reaches 50 and 52 is substantiallyL-shaped in cross section so as to strengthen the parts. The legs 88 and'IIJ of both brackets 54 and 56 are spaced apart suiciently far tofreely receive the beam I2 to permit quick and easy placement. Each ofthe legs 68 is depressed at 'l2 to provide additional space for theflange I6 of the beam I2.

The legs 68 lie against one side of the enlargement I3 and I provide afiller block I4 between the legs and the beam proper. Each leg I8 car*ries a screw 'I6 positioned to engage the beam I2 for fastening thebracket to the beam. I prefer to extend the edge 'I8 of the table beyondthe legs 68 so that it rests upon the enlarged part I8 in close relationwith the cutting blade 20. The op-posite edge of the table is bent downat 8U and both ends are similarly bent as indicated at 82.

Upon the table 48 I mount a ruled guide bar 84. This bar comprises astandard wood rule mounted upon a metal bar 88. I recess the rule 8B at98 for the reception of a protractor 92. A rivet 94 fastens one end ofthe ruler 86 to the bar 88, while the opposite ends of the two parts areconnected together by a bolt 88 which provides a pivot for the guide bar84. The bolt extends through aligned openings in, both parts of theguide bar and the protractor and the table 48 and its horizontalsupporting reach 54, (see Fig. 5).

The protractor 92 is additionally fastened to the guide bar 84 by arivet 98 which passes through the metal bar 88 (see Fig. 4). I provide acurved slot E88 in the protractor for the reception of a bolt I 82extending through a cross bar IIJ4 riveted to the table 48 at |96 (seeFig. 5). The cross bar ID4 is arranged at right angles to the blades 20and 30.

The bolt |02 is squared at |08 and extends Vthroughaligned openings inthe table 48Vand the n reach 50 of the bracket 54. I mount a sleeve H0uponV the bolt and provide the latter with a grip Y part H2 havingthreaded relation with the bolt soV so that the protractor 92 may besecured in various adjusted positions for supporting the guide barV 84at the desired` angle with respect to the cutting blades of the device.

Inoperation, the guide bar 84 may be shifted toV a position at rightangles to the cutting blades 20 and 3U, in which case it provides anabutment for supporting the shingles so that the edge, may be cut atright angles to the edge abutting the guide bar 84. With the guide barin the latter position, it is prevented from swinging"furtherv becauseof its engagement with the cross .bar |04. As a Vguide to cuttingshingles a predetermined Width, I provide Vguide lines H4 in :the

Asurface of the table v48. These lines maybe spacedY one inch apart orat shorter intervals. In Vcases Where it is .desired to'v make anangular cut, the guide vbar 84Y is adjusted to align a division on theprotractor representing the required angle with the edge l I6. With thegrip part l I2`turned down tightly,'theguidebar 84 will be rrnlysupported at the necessaryfangle.

My invention provides -a convenient table and guide means co-operatingtherewith for facilitating thecutting of shingles. The construction isYdesigned .so that it may be easily and quickly connected with equipmentof standard design.

Without further elaboration, the foregoing will so fully explain myinventionthat others may, by applying current knowledge, readily adapt`the same for use under various conditions of service.

I claim: K

1. The combination with a shingle cutter comprising a stationary supportin the nature of a narrow beam having a rblade and a movable sup-` portconnected with the former and having a blade arranged in operativerelation with the rst blade, of a pair of generally U-shaped bracketshaving horizontally aligned arms, the U-'shaped parts of said V'bracketssubstantially 'encircling the stagtionary support, adjustable means forconnecting the U-shaped parts with the stationary support, Y .Y and atable carried by said horizontallyaligned 10Y arms. ,Y Y

2. In a shingle cutter having a normally vertically positioned beamprovided with a cutting blade fastened to its upper edge, a supportingtable :projecting laterally from the beam and having an 15 edgeextending over the upper edge ofV said beam, a bracket for supportingthe table, said bracket '.:comprising afhorizontall reach connected withthe table for supporting the same and a U-shaped part, said `beam beingpositioned within saidzo U-shaped part, andrmeans for detachablysecuring the U-shaped part of the bracket tothe beam.

3. In a shingle cutter, a flat support normally positioned in a veticalplane and'having a flat upper edge,.a knife narrower thanv the upperedge 25 :and connected therewith, a table, brackets'xedly secured to thetable andjhaving .U-shaped parts Yfor receiving said,V support, one legof veach U-shaped part bearing against one side of said support, -saidtable-extending inwardly of the 31j U'shaped` parts Vand arranged toextend over a portion of said upper edge, and :means carried by.

the other legs of `said .U-shaped parts and cooperating with saidsupportfor xedly connecting the parts therewith.

' .$5 ELDER G. NIELSEN.

